Table 1 Patient characteristics and potential risk factors for mortality associated with A. baumannii infections (N = 111)
Information | n (%) |
|---|---|
Sex | |
Male | 69 (62.2) |
Female | 42 (37.8) |
Age (years) | |
 < 45 | 10 (9) |
45–54 | 6 (5.4) |
55–64 | 27 (24.3) |
65–74 | 20 (18) |
 ≥ 75 | 48 (43.2) |
Mean ± standard deviation: 68 ± 16 |  |
Range: 23–97 |  |
Department of infection acquisition | |
Intensive care unit | 85 (76.6) |
Internal medicine | 13 (11.7) |
Cardiac care unit | 9 (8.1) |
Surgery | 3 (2.7) |
Oncology | 1 (0.9) |
Season of infection acquisition | |
Winter | 49 (44.1) |
Spring | 18 (16.2) |
Summer | 31 (27.9) |
Fall | 13 (11.7) |
Potential pre-admission risk factors | |
Underlying medical conditionsa | |
Hypertension | 72 (64.9) |
Diabetes mellitus type II | 63 (56.8) |
Chronic kidney disease | 37 (33.3) |
Coronary artery disease | 37 (33.3) |
Neutropenia | 33 (29.7) |
Thrombocytopenia | 30 (27) |
Solid neoplasia | 26 (23.4) |
Dyslipidemia | 22 (19.8) |
Blood transfusion | 22 (19.8) |
Chronic obstructive lung disease | 13 (11.7) |
Cerebrovascular disease | 12 (10.8) |
Dementia | 12 (10.8) |
Congestive heart failure | 10 (9) |
Peripheral vascular disease | 7 (6.3) |
Epilepsy | 3 (2.7) |
Lymphoma | 3 (2.7) |
Leukemia | 3 (2.7) |
Peptic ulcer | 3 (2.7) |
Polytrauma | 2 (1.8) |
Solid organ transplant | 1 (0.9) |
HIV/AIDS | 1 (0.9) |
Hospitalization within the last three months | 12 (10.8) |
Use of antibiotics within the last three months | 14 (12.6) |
Use of glucocorticoids within the last four weeksb | 13 (11.7) |
Use of chemotherapy within the last three months | 10 (9.1%) |
Potential post-admission risk factors | |
Length of hospital stay prior to infection acquisition (days) | |
Mean ± standard deviation: 12.23 ± 8.25 |  |
Invasive medical procedures within 30 days prior to infection acquisitiona | |
Mechanical ventilation | 78 (70.3) |
Indwelling urethral catheterization | 73 (65.8) |
Central venous line | 58 (52.3) |
Surgery | 23 (20.7) |
Prolonged total parenteral nutrition | 23 (20.7) |
Renal replacement therapy (dialysis) | 20 (18) |